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#ifndef flow_types_h_DEFINED
#define flow_types_h_DEFINED
#include <opencv2/core/core.hpp>
#include <deque>

namespace cpl_visual_features
{

class AffineFlowMeasure
{
 public:
  AffineFlowMeasure(int x_ = 0, int y_ = 0, int u_ = 0, int v_= 0,
                    int label_=-1) : x(x_), y(y_), u(u_), v(v_), label(label_)
  {
  }

  cv::Mat X()
  {
    cv::Mat X(3, 1, CV_32FC1);
    X.at<float>(0,0) = x;
    X.at<float>(1,0) = y;
    X.at<float>(2,0) = 1.0;
    return X;
  }

  bool operator==(AffineFlowMeasure b)
  {
    return (b.x == x && b.y == y);
  }

  float operator-(AffineFlowMeasure b) const
  {
    const float d_x = x-b.x;
    const float d_y = y-b.y;
    return std::sqrt(d_x*d_x+d_y*d_y);
  }
  // Members
  float x;
  float y;
  float u;
  float v;
  int label;
  cv::Mat a;
};

typedef std::deque<AffineFlowMeasure> AffineFlowMeasures;
}

#endif // flow_types_h_DEFINED
